schulze



(No Model.) 2 Sheets-Sheet. 2.

J.H.SOHULZE.

v VELOGIPEDB. No. 342,934. Patented June 1, 1886.

S Zr 7 z 8 7 Z 7f )JW 4 M By WM ATTORNEY N. PETERS. Phato-Lillwgraphar.Wmhi c NITED' STATES PATENT OFFICE.

JOHANN HEINRICH SOHULZE, OF BERLIN, GERMANY.

VELOCIPEDE.

SPECIFICATION forming part of Letters Patent No. 342,934, dated June I1886.

Application filed May 1, 1885. Serial No. 164,093. (No model.) Patentedin England April 23, 1885, No. 5,021.

To all whom it may concern:

Be it known that I, J OHANN HEINRICH SoHULzE, a subject of the King ofPrussia, residing at Berlin, in the Kingdom of Prussia, in Germany, haveinvented certain new and useful Improvements in Velocipedes; and I dohereby declare the following to be a full, clear, and exact descriptionof the invention, such as will enable others skilled in the art to whichit appertains to make and use it, reference being had to theaccompanying drawings, and to letters or figures of reference markedthereon, which form a part of this specifica- 'tion.

A serious disadvantage in all the systems of velocipedes heretofore usedconsists in their not attaining on uneven ground the velocity requiredof them, and therefore not being serviceable for practical use wheneverspeed is the main point, for war purposes, oonvey ance of the post, &c.By means of the present construction the inventor endeavors to removethese deficiencies, and the present construction is based on theprinciple of introducing a fly-wheel, the purpose of which is similar tothat of fly-wheels in locomotives and steam-engines.

In the accompanying drawings, Figure 1 represents a side view of avelocipede con structed after the present system. Fig. 2 is a view fromabove of Fig. 2. Fig. 3 is a sec tion on line I II through Fig. 1. Fig.4 is a section on line III IV through Fig. 2.

Similar letters refer to similar parts th roughout the several views.

Two-wheel axles with wheels of equal diameter running loose on them areconnected by means of two stays,a a, which allow the axles sufficientplay both backward and forward and keep them parallel with each other,so as to form asliding frame. Within the frame thus formed supports I) band c c projectnpward from each end of the shafts a a, and with thestays a each forms a triangular carriage. The two supports I) and b areheld together by a strong cross-connection, (I, which allows thesupports a certain backward and forward motion. From thiscross-connection two arms, 6 6, rise slanting, and in the upper ends ofthese arms on the one side and in the connecting-point of supports I)and c on the other side a crankaxle, f, is bedded in each, and carrieseach on its extreme end a fly-wheel, 9. On each side of the velocipedethe fly-wheel g and the two carriagewheels h and t are connected onequally long crank-arms by means of crankpins 8 s s,- and by the threeconnecting-rods k is k, which are in the shapeof a triangle, and thusform a crank-triangle together. On the wheel-axles are springs l, and onthem rests the carriage-body itself, which can, according torequirement, be of different shapes. For instance, in Fig. 1 0represents the drivers seat, m and n being two raised casings arranged,respectively, at the front and rear of the frame. These casings maybeutilized for holding provisions or parcels. The-feet of the I driveroperate treadles p, Figs. 1 and 2, which are on forks g, which arefastened to the cross-connection d in hinge-joints r r, and from theselatter the connecting-bars t 23 extend up to the cranks f f. The persondriving the conveyance will, by alternate treading with each leg, setthe mechanism on each side of the vehicle in motion. The two mechanisms,which are made alike and symmetrical, are independent of each other. Byplacing a brakestrap round the rim of each fly-wheel the latter can beturned into brake-wheels.

By means of the lever o,'Fig. 1, the brakestrap can be made to operateby lifting the handle w. The handles w are on both sides of the vehicleat a convenient height and close to the saddle, and the person drivingrests during the drive on 'both sides with hand and arm on these handles10, which are fitted into the guide-strap a0, fastened to the saddle. Ifthe person driving treads uniformly with both feet on steps 11 thevehicle moves forward in a straight direction, provided thewheel-systems on both sides revolve in the same direction. Should thedriver wish to turn to one side, then he lifts the corresponding handleon the right or the left, and thus causes the brake to operate and checkthe motion of the mechanism on the side in question. .The mechanismstops altogether as soon as he leaves off treading on that side. \Vhenchecked in this manner the axles and the frame on that side slide backto a certain degree, and all the four wheels h h h it get into aslanting position; buton the other side of the vehicle the motioncontinues, and is kept up by continued treading. In consequence of thisthe vehiclewill move forward in a curved direction and the center ofthis curveis formed 5 by the side of vehicle onto which the brake hasbeen put.

Turning in short curves is effected by putting on the brake quickly oneither side. By

immediate quick treading after that the backward motion is broughtabout, which the driver checks again when the turning is effected andconverts into a forward motion again.

In order to stop the vehicle quickly, both brakes must of course be puton at the same 1 5 time.

JOHANN HEINRICH SCHULZE.

\Vitnesses:

G. H. SMITH,

